USWNT defender Naomi Girma has completed her move from the San Diego Wave to Chelsea and become the most expensive transfer in women’s soccer history.

Chelsea have made USWNT defender Naomi Girma the first $1m transfer in women's football, but how did the record-breaking deal come about?

United States defender Naomi Girma has become women's soccer's first million-dollar player. The 24-year-old Girma completed her move from San Diego Wave to Chelsea for a reported 900,000 pounds ($1.1 million) on Sunday.

Chelsea announced the signing of Girma. Reports say the English champions have spent $1.1 million on the transfer.